You say backlight LCD....
Try checking your current drain... How much current are you pulling with everything?
Reason why? I purchased a LCD from electroncs place...connected it up, and almost promptly overloaded my 7805 (which didn't have a heat sink on it). The current drain was 300+ mills just for the LCD!.... Needless to say, I switched LCD's. and only destroyed 2 7805's before I found out what was happening.
Could you be overloading your supply, and the supply shutting down? Can you verify that your 74HCT373, 74HCT245 are working, eventhough the LCD is dead?
Dwayne
Ability to Fly:
Hurling yourself towards the ground, and missing.
Engineers that Contribute to flying:
Both optimists and pessimists contribute to the society. The optimist invents the aeroplane, the pessimist the parachute
Pilots that are Flying:
Those who know their limitations, and respect the green side of the grass...
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